class Idlc::ZipFileGenerator

def initialize(inputDir, outputFile)
  @inputDir = inputDir
  @outputFile = outputFile
end

def write()
  entries = Dir.entries(@inputDir); entries.delete("."); entries.delete("..")
  io = Zip::File.open(@outputFile, Zip::File::CREATE);
  writeEntries(entries, "", io)
  io.close();
end

def writeEntries(entries, path, io)
  entries.each { |e|
    zipFilePath = path == "" ? e : File.join(path, e)
    diskFilePath = File.join(@inputDir, zipFilePath)
    debug("Deflating " + diskFilePath)
    if  File.directory?(diskFilePath)
      io.mkdir(zipFilePath)
      subdir =Dir.entries(diskFilePath); subdir.delete("."); subdir.delete("..")
      writeEntries(subdir, zipFilePath, io)
    else
      io.get_output_stream(zipFilePath) { |f| f.puts(File.open(diskFilePath, "rb").read())}
    end
  }
end